import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class BonusBox here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class BonusBox extends Actor
{
    
   public void selecciona()
   {
       int x=Greenfoot.getRandomNumber(2);
       
           if(x==0)
            setImage("cala.jpg");
        }
    }
            
       
    
